The present invention of compounds of formula (I) ##STR00001## a stereochemically isomeric form thereof, an N-oxide form thereof or a pharmaceutically acceptable acid addition salt thereof, R.sup.1 and R.sup.2 taken together form a bivalent radical of formula wherein in said bivalent radicals one or two hydrogen atoms may be substituted with C.sub.1-6alkyl; R.sup.3 is hydrogen or halo; R.sup.4 is hydrogen or C.sub.1-6alkyl; R.sup.5 is hydrogen or C.sub.1-6alkyl; L is C.sub.3-6cycloalkyl, C.sub.5-6cycloalkanone, C.sub.2-6alkenyl, or L is a radical of formula --Alk--R.sup.6--, Alk--X--R.sup.7, --Alk--Y--C(.dbd.O)--R.sup.9, or --Alk--Y--C (.dbd.O)--NR.sup.11R.sup.12 wherein each Alk is C.sub.1-12alkanediyl; and R.sup.6 is hydrogen, cyano, C.sub.1-6alkylsulfonylamino, C.sub.3-6cycloalkyl, C.sub.5-6cycloalkanone, or a heterocyclic ring-system; R.sup.7 is hydrogen, C.sub.1-6alkyl, hydroxyC.sub.1-6alkyl, C.sub.3-6cycloalkyl, or a heterocyclic ringsystem; X is O, SO.sub.2 or NR.sup.8; said R.sup.8 being hydrogen or C.sub.1-6alkyl; R.sup.9 is hydrogen, C.sub.1-6alkyl, C.sub.3-6cycloalkyl, C.sub.1-6alkyloxy or hydroxy; Y is NR.sup.10 or a direct bond; said R.sup.10 being hydrogen, or C.sub.1-6alkyl; R.sup.11 and R.sup.12 each independently are hydrogen, C.sub.1-6alkyl, C.sub.3-6cycloalkyl, or R.sup.11 and R.sup.12 combined with the nitrogen atom may form an optionally substituted pyrrolidinyl, piperidinyl, piperazinyl or 4-morpholinyl ring. Processes for preparing said products, formulations comprising said products and their use as a medicine are disclosed, in particular for treating conditions which are related to impairment of gastric emptying.